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Convert Sorted List to Binary Search Tree
Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.Analyse: the core idea of this problem is...
分类:其他好文   时间:2015-07-31 12:52:11    阅读次数:108
Convert Sorted Array to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST.Analyse: Using binary search to divide the sorted arr...
分类:其他好文   时间:2015-07-31 12:19:02    阅读次数:102
enmo_day_04
数据库名称 : PROD1update employees set salary = salary + 1000 where LAST_NAME = ‘Bell’;select LAST_NAME, salary from employees where LAST_NAME=‘Bell’; (结果为...
分类:其他好文   时间:2015-07-31 12:18:01    阅读次数:77
sql 语句
查询最新时间的每个人的记录SELECT * FROM station2015 a WHERE EXISTS (SELECT 1 FROM (SELECT StationNum, MAX(DataTime) New_Time FROM station201...
分类:数据库   时间:2015-07-31 12:08:52    阅读次数:138
最近工作中遇到的SQL语句
1.求表中某列的和,并把其值赋给一个变量: SqlCommand cmd = new SqlCommand( "select sum(aa) from table ", conn); Int32 aa= (Int32) cmd.ExecuteScalar(); 2.判断字段的值是否为数字 select * from hr_user where isnumeric(usi...
分类:数据库   时间:2015-07-31 10:41:08    阅读次数:203
LeetCode-Product of Array Except Self
Given an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product of all the elements of nums except nums[i]. Solve it without division and in O...
分类:其他好文   时间:2015-07-31 10:33:59    阅读次数:144
iDB指令记录
select * from rs_special_question order by id desc;select count(*) from rs_special_question;update rs_special_question set identity = "seller" where i...
分类:数据库   时间:2015-07-31 10:28:37    阅读次数:146
Trapping Rain Water
问题描述Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after rainin...
分类:移动开发   时间:2015-07-31 10:20:20    阅读次数:133
#leetcode#Rotate List
Given a list, rotate the list to the right by k places, where k is non-negative. For example: Given 1->2->3->4->5->NULL and k = 2, return 4->5->1->2->3->NULL. 分析:注意k有可能会大于list的长度,所以先求出list...
分类:其他好文   时间:2015-07-31 06:41:05    阅读次数:119
Castle.DynamicProxy 拦截器
前言:我们已经使用工厂模式得到需要的service对象,以下方法可以通过Castle.DynamicProxy给service对象的方法添加拦截器。/// /// 创建服务根据BLL接口/// public static T CreateService() where T : class{ v...
分类:其他好文   时间:2015-07-30 23:10:40    阅读次数:375
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